20407358760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1\times {\mathrm{3967}}^1$

素因数の和:4407

約数の個数: 128

約数和(自身を含む): 61847470080

約数和(自身を除く): 41440111320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 163, 263, 326, 489, 526, 652, 789, 815, 978, 1052, 1304, 1315, 1578, 1630, 1956, 2104, 2445, 2630, 3156, 3260, 3912, 3945, 3967, 4890, 5260, 6312, 6520, 7890, 7934, 9780, 10520, 11901, 15780, 15868, 19560, 19835, 23802, 31560, 31736, 39670, 42869, 47604, 59505, 79340, 85738, 95208, 119010, 128607, 158680, 171476, 214345, 238020, 257214, 342952, 428690, 476040, 514428, 643035, 646621, 857380, 1028856, 1043321, 1286070, 1293242, 1714760, 1939863, 2086642, 2572140, 2586484, 3129963, 3233105, 3879726, 4173284, 5144280, 5172968, 5216605, 6259926, 6466210, 7759452, 8346568, 9699315, 10433210, 12519852, 12932420, 15518904, 15649815, 19398630, 20866420, 25039704, 25864840, 31299630, 38797260, 41732840, 62599260, 77594520, 125198520, 170061323, 340122646, 510183969, 680245292, 850306615, 1020367938, 1360490584, 1700613230, 2040735876, 2550919845, 3401226460, 4081471752, 5101839690, 6802452920, 10203679380, 20407358760]

約数ペア:

[(1, 20407358760), (2, 10203679380), (3, 6802452920), (4, 5101839690), (5, 4081471752), (6, 3401226460), (8, 2550919845), (10, 2040735876), (12, 1700613230), (15, 1360490584), (20, 1020367938), (24, 850306615), (30, 680245292), (40, 510183969), (60, 340122646), (120, 170061323), (163, 125198520), (263, 77594520), (326, 62599260), (489, 41732840), (526, 38797260), (652, 31299630), (789, 25864840), (815, 25039704), (978, 20866420), (1052, 19398630), (1304, 15649815), (1315, 15518904), (1578, 12932420), (1630, 12519852), (1956, 10433210), (2104, 9699315), (2445, 8346568), (2630, 7759452), (3156, 6466210), (3260, 6259926), (3912, 5216605), (3945, 5172968), (3967, 5144280), (4890, 4173284), (5260, 3879726), (6312, 3233105), (6520, 3129963), (7890, 2586484), (7934, 2572140), (9780, 2086642), (10520, 1939863), (11901, 1714760), (15780, 1293242), (15868, 1286070), (19560, 1043321), (19835, 1028856), (23802, 857380), (31560, 646621), (31736, 643035), (39670, 514428), (42869, 476040), (47604, 428690), (59505, 342952), (79340, 257214), (85738, 238020), (95208, 214345), (119010, 171476), (128607, 158680)]